diff --git a/traffic_ops/build/build_rpm.sh b/traffic_ops/build/build_rpm.sh
index 96043dedaf..126cb2a6fe 100755
--- a/traffic_ops/build/build_rpm.sh
+++ b/traffic_ops/build/build_rpm.sh
@@ -111,8 +111,9 @@ initBuildArea() {
 	cp "$TO_DIR"/build/traffic_ops.spec "$RPMBUILD"/SPECS/. || \
 		 { echo "Could not copy spec files: $?"; return 1; }
 
+	source "${TC_DIR}/.env"
 	PLUGINS="$(grep -l 'AddPlugin(' "${TO_DIR}/traffic_ops_golang/plugin/"*.go | grep -v 'func AddPlugin(' | xargs -I '{}' basename {} '.go')"
-	export PLUGINS
+	export POSTGRES_VERSION PLUGINS
 
 	echo "The build area has been initialized."
 }
diff --git a/traffic_ops/build/traffic_ops.spec b/traffic_ops/build/traffic_ops.spec
index 536e95074e..53fb0d94f6 100644
--- a/traffic_ops/build/traffic_ops.spec
+++ b/traffic_ops/build/traffic_ops.spec
@@ -21,6 +21,7 @@
 %define TRAFFIC_OPS_LOG_DIR /var/log/traffic_ops
 %define TRAFFIC_OPS_ROOT_CERTIFICATES_DIR /var/log/traffic_ops
 %define debug_package %{nil}
+%define postgres_version %{getenv:POSTGRES_VERSION}
 
 Summary:          Traffic Ops
 Name:             traffic_ops
@@ -36,7 +37,7 @@ AutoReqProv:      no
 Requires:         cpanminus, expat-devel, libcurl, libpcap-devel, mkisofs, tar
 Requires:         openssl-devel, perl, perl-core, perl-DBD-Pg, perl-DBI, perl-Digest-SHA1
 Requires:         libidn-devel, libcurl-devel, libcap
-Requires:         postgresql13 >= 13.2
+Requires:         postgresql13 >= %{postgres_version}
 Requires:         perl-JSON, perl-libwww-perl, perl-Test-CPAN-Meta, perl-WWW-Curl, perl-TermReadKey, perl-Crypt-ScryptKDF
 Requires:         python3
 Requires(pre):    /usr/sbin/useradd, /usr/bin/getent